Home / 2,251.42-3,107.04-1,256.74

Finding the Fourth Proportional to 2,251.42, 3,107.04 and 1,256.74

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Solution

The fourth proportional to 2,251.42, 3,107.04 and 1,256.74 is: 1,734.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.42 : 3,107.04 = 1,256.74 : x
  2. Step 2: Convert to fraction form
    2,251.42/3,107.04 = 1,256.74/x
  3. Step 3: Cross multiply
    2,251.42x = 3,107.04 × 1,256.74
  4. Step 4: Simplify right side
    2,251.42x = 3,904,741.45
  5. Step 5: Solve for x
    x = 3,904,741.45/2,251.42
  6. Step 6: Final answer
    x = 1,734.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.